What Molds Are Used For Aluminium Casting (Part 2)

In part one of this article, we looked at the first four molds that are commonly used in the process of aluminium casting – sand, ceramic, permanent and die casting ones. Now, in part two, we will look at the final three molds and the ways in which they are used to create the various aluminium components that are regularly used across a number of industries.

• Shell: This mold is actually a form of the sand casting one and utilizes resin the bond the sand into a thin shell. This is, however, the more expensive of the two methods, although it is highly effective in producing a better surface on the aluminium component.
• Plaster: These molds are created using a plaster mixture that is poured around some wax or foam. The mold is then baked, allowing the wax or foam to melt away and leaving a perfect copy of its shape. Molten aluminium is then poured into the cavity.
• Graphite Casting: This mold is often used in conjunction with aluminium centrifugal casting. The metal is forced into the mold where it is rapidly chilled. The resulting component cannot be created using any of the other processes.

Each of the seven molds outlined in parts one and two of this blog have long been used to craft the various aluminium shapes and forms that are used in construction and other related industries everyday. By familiarizing yourself with each of the descriptions, you should be able to determine which mold will best suit your needs, resulting in perfectly casted metal every time.